Segment and Geographic Information (Schedule of Operating Segments) (Details) - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2025	Jun. 30, 2024	Jun. 30, 2025	Jun. 30, 2024	Dec. 31, 2024
Segment Reporting Information [Line Items]
Sales		$ 642,335	$ 665,896	$ 1,274,099	$ 1,341,471
Cost of sales		577,563	597,946	1,146,147	1,206,113
Selling, general and administrative expenses		40,569	38,022	79,369	75,354
Income from operations		20,486	27,253	32,245	52,782
Interest expense		(6,348)	(6,933)	(11,643)	(14,178)
Interest income		3,135	2,526	5,867	4,518
Other expense, net		(666)	(2,323)	(1,468)	(3,500)
Income before income taxes		16,607	20,523	25,001	39,622
Depreciation and amortization		12,017	11,432	23,785	23,026
Capital expenditures		12,304	8,504	16,460	14,407
Total assets		2,030,845		2,030,845		$ 2,139,464
Elimination Of Intersegment Sales [Member]
Segment Reporting Information [Line Items]
Sales		(23,347)	(20,771)	(46,179)	(55,837)
Operating Segments [Member]
Segment Reporting Information [Line Items]
Sales		665,682	686,667	1,320,278	1,397,308
Income from operations		51,258	51,943	93,470	102,664
Other - corporate and eliminations	[1]	(30,772)	(24,690)	(61,225)	(49,882)
Interest expense		(6,348)	(6,933)	(11,643)	(14,178)
Interest income		3,135	2,526	5,867	4,518
Other expense, net		(666)	(2,323)	(1,468)	(3,500)
Income before income taxes		16,607	20,523	25,001	39,622
Operating Segments [Member] | External Revenue [Member]
Segment Reporting Information [Line Items]
Sales		642,335	665,896	1,274,099	1,341,471
Operating Segments [Member] | Intersegment sales [Member]
Segment Reporting Information [Line Items]
Sales		23,347	20,771	46,179	55,837
Americas [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Sales		295,217	343,141	579,495	715,470
Cost of sales		263,884	310,768	523,541	638,556
Selling, general and administrative expenses		7,349	8,024	14,829	15,995
Other	[2]	2,200	1,088	13,617	3,828
Income from operations		10,777	13,186	6,349	23,353
Depreciation and amortization		5,255	5,254	10,467	10,679
Capital expenditures		5,241	3,833	6,360	5,616
Total assets		813,697		813,697		866,595
Americas [Member] | Operating Segments [Member] | External Revenue [Member]
Segment Reporting Information [Line Items]
Sales		284,210	333,066	558,336	681,732
Americas [Member] | Operating Segments [Member] | Intersegment sales [Member]
Segment Reporting Information [Line Items]
Sales		11,007	10,075	21,159	33,738
Asia [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Sales		287,066	257,670	571,105	515,486
Cost of sales		238,874	213,875	470,431	425,535
Selling, general and administrative expenses		3,850	3,452	7,384	6,490
Other	[2]	6	(2)	12	375
Income from operations		33,832	32,129	72,469	65,906
Depreciation and amortization		2,865	2,513	5,608	5,037
Capital expenditures		4,243	2,365	5,862	4,870
Total assets		708,695		708,695		821,252
Asia [Member] | Operating Segments [Member] | External Revenue [Member]
Segment Reporting Information [Line Items]
Sales		276,562	249,454	550,296	498,306
Asia [Member] | Operating Segments [Member] | Intersegment sales [Member]
Segment Reporting Information [Line Items]
Sales		10,504	8,216	20,809	17,180
Europe [Member] | Operating Segments [Member]
Segment Reporting Information [Line Items]
Sales		83,399	85,856	169,678	166,352
Cost of sales		72,474	74,278	146,106	143,338
Selling, general and administrative expenses		2,440	2,466	4,709	4,686
Other	[2]	0	4	0	4
Income from operations		6,649	6,628	14,652	13,405
Depreciation and amortization		1,006	862	1,989	1,743
Capital expenditures		1,722	1,037	2,224	2,061
Total assets		245,037		245,037		225,872
Europe [Member] | Operating Segments [Member] | External Revenue [Member]
Segment Reporting Information [Line Items]
Sales		81,563	83,376	165,467	161,433
Europe [Member] | Operating Segments [Member] | Intersegment sales [Member]
Segment Reporting Information [Line Items]
Sales		1,836	2,480	4,211	4,919
Corporate [Member]
Segment Reporting Information [Line Items]
Depreciation and amortization		2,891	2,803	5,721	5,567
Capital expenditures		1,098	$ 1,269	2,014	$ 1,860
Total assets		$ 263,416		$ 263,416		$ 225,745

[1] Includes corporate expenses for unallocated expenses, amortization of intangible assets, restructuring charges and other costs and elimination of intersegment cost of sales.

[2] Includes expenses for amortization of intangible assets and restructuring charges and other costs.